Brand Name: kebidumei Power Source: Battery Inbox adaptor: Yes Cabinet Material: Plastic Audio Crossover: Full-Range Battery Charge Time: 2 Waterproof: No Voltage range: USB (5-20V DC) Communication: Bluetooth Speaker Type: Portable Channels: 5 (4.1) Support APP: Yes Battery: Yes Category: Speakers Use: Home Origin: Mainland China Sound Mode: Standard Mode Surround sound channel configuration: 2.0 Audio latency: Low Delay Voice Control: No Power Source: Battery Number of Loudspeaker Enclosure: 1 Input Power(W): <25 W High-concerned chemical: none Output Current: 2A Input/Output: Other Intelligent Personal Assistant: NONE Tweeter material: Other Acoustic enclosure: Other Remote Control: No Bluetooth Version: Other Output Voltage: 5 W Support Memory Card: Yes Feature: None Battery Capacity[mAh]: 1200 Woofer/Widerange material: Other Playback Function: mp3 Playback Function: WAV Display Screen: No Maximum wireless range[m]: <10m Sabwoofer cabinet material: Plastic Certification: CE Touch Screen: no Active Noise-Cancellation: Active Material: Plastic Display Screen: No Mid-range material: Other Built-in Microphone: No Choice: yes